Blast-furnace top



Filed Aug. 4, 1920 4 Sheets-Sheet l W. L. KLUTTZ ATTORNEY Aug. 2l, i923. Ll

W. L. KLUTTZ BLAST FURNACE TOP Flled Aug 4, 1920 4 Sheets-Sheet 2 FIG E INVENTOR W. L, KLUTTZ ATTORNEY Augi 21', w23. Mfz

` W. L. KLUTTZ BLAST FURNAGE TOP Filed Aug. 4, 1920 4 Sheets-Sheet 5 Aug. 2l, i923. 11,465,273

W. 1 KLUT-rz BLAST FURNACE TOP Filed Aug. 4, 1920 4 Sheets-Sheet 4 Wannen Lavvsonnnnrra, or nrnnrrnoneia, ,tiranni/m.

BLAST-renuncia rron Application filed August 4,19%, Serial No. v401,102.

To allee/wm t'z may concern.' dial plane. .By this arrangement the stock is VBe .itl known that I, VVAnnnN Lawson directed downwardly and discharged sub- KLUr'rz7 a citizen ot the United .States Vet sta-ntially at right angles to a radius ot the America, residing` at Birmingham, in the large-heil thereby causing the line particles r -5 county ot Jefferson and State'oit Alabama7 to fallfina radial zone adjacent to the dishave invented certain new and useful imcharge end the spout While-the coarser provements in a `i3lo.stl3`ui11aee Top, of ,particles will. tall in a radial zone farthest which the 'foiiowing is sa specicatiom. from the spout. t should be understood My invention relates to a top structure for 4that any other mechanical means `for accommetallurgicalblast `furnaces of `the type. in plishing this distribution maybe substituted `which Vthe distributing mechanism co-opcr- Within the scope of my invention. ates vvitha slripor equivalent hoist to diS- i, Another feature o1 my invention is the tribute the stool; charges on the large seal. simpiication ot the means -for advancing` bell to the end that the distribution otV the the distributing spout step by step in co-or- G5 stock in the furnace `shall be that best suited Vdirmtion with the operation ot the skip hoist for the desired furnace operation. Y or equivalent loading mechanism. My prerEhe chierc object of my invention is to izniierred step by step drive for the spout inprove `the manner of the distribution-ot the volves the provision of an automatic clutch. stock in the furnaceV by so adapting the disso (io-ordinated with each top pulley ot the 7 tributing mechanism that the stoclrivill 'tall skip hoist 'or equivalent element that it will on the large gas seal bell in spaced piles ochave a reversible rotation. This clutch.l or cupying segments thereof ,With the material Where a double skip is used, these clutches of each segmental pile varying in size in ditare driven only during the upward travel ot ferent radial zones ot the segment. in other their respective skip cars and the clutches 75 Words, considering each segment of the tun transmit their motion through suitable nace individualiy into which -a stock pile Ysprockets or `eCuiiJ-.falent driving means to the Jfallait Will be found that the coarserpargearing which rotates the distributing spout ticles Will occupy the Zone along one radial and ir" desired a differential selective drive edgeet such segment while the finer partibe interposed to vary the angles 50 39 cles Will occupy the zone along' its other ra- Vthrough .vhich the spout is advanced each dial edge, and the stock i Y the intervening step. ln this manner the spout may be space Vwill graduate in radial zones with apcaused to 'malte four or six discharges durproximate uniformity from coarse toiine. ingeaeh complete rotation. This being characteristic ot each pile or segy Lit/ly invention invoives the novel detailsoif' S5 V mentoit the stock, the resultant charac conconstruction `arrangements ot parts uw.: v Vsidered as a Whole, will present a successive lwhich are hereinatter more particularly deseries of radial segments, the stock` in Veach scribed and claimed and which are illustrated series varying from coarse to fine particles, in their `pneterred embodiment only in the thus causingr the -bla'st to penetrate moreuniaccompanying' drawings which form a part 90 40 formly through the stock from center to cirof this specification, and in Whichz cumference ot the stack andby this arrangel is a sectional vi W through a 'turment avoidV the disadvantages of distributnace trop showing the superfstrueture in 'eleA ing the coarse or fine stock aboutthelining, vation with the hood broken away to shouthereby causing the .blast to travel practithe distributing spout in elevation.

45 cally entirelythrough the center. or upaiong Fig.' 2 is a plan vienT et the distributing' the lining of the furnace. i f spout taken on the line 2 2 of Fig. l With As a preferred means for accomplishing the hood removed. y this novel distribution I utilize a peculiarly 3 is a detail plan vienv ot the step by constructed distributing` chute shaving .a Vstep drive mechanism for the distributing;

.50 centralftop intake anda curved body. termispout; and

nating in a discharge opening lying in ara- 'y Figst and 5 are detail views shotvino` the "lnoperation,as the skips ascendfand descend their respective automatic clutches 4 8 and' 49, become alternately effective' and drive` through the transmission described to advance the 'spout onestop for each slrip load hoisted. At the same time, and in the manner well understood, the'upper bell is held in raised position and the successive skip loads of stock fall into the upper hopper 12 and are directed through the distributing spout so that they fall upon the large bell 2. In each of these piles the line material lies radially adjacent to the spout and the coarse material inV azone remote from the spout.

In Fig. 2 a slrip'load of stock is shown distributed on the segment of the big bell 2 and lip ring 4 which is subtended by the arc indicated by the dotted line 53. lt will be observed'that this charge of stock isshown subdivided in an illustrative manner by radial lines into three radialzones marked 54, 55V and 56. The zone 54 farthest from the discharge. end of the spout contains the coarse particles of stock of approxiinately uniform size from the inner to the outer odge of the zone; In like manner 'the Zone 5G containsv the line particles, and

zone 55 the particles of intermediate sizes. As the spout is moved by each approaching skip the piles of stock areA distributed circumferentially about the bell in segments approximatelyequal to 53, and in each seg-V `divided into segmental zones, each compris-V ing a series of zones grading from coarse to line stock, and in each Zone the size of the particles will be approximately uniform from the center to the lining of the furnace,

tliusrpcrmitting a uniform passage of air throughout the zone.

The means for carrying the foregoing objects into effect may be widely varied without departing from the spirit and scope of my invention;

What l claim, is

l. In a blast furnacetop, the combination with the main bell and its hopper, of an intermittently rotatable distributingmeans adapted to discharge the stock -in a direction substantially at right anales to arradius of the hopper at the discharge end of said distributing means.

2. ln a blast furnace top, a main bell, a hopper therefor, .a distributor rotatable above the hopper and having a downwardly After the desired amount of stock hasV rotatable distributing chute having a circular top lying in a horizontal plane and a curved body gradually changinodownwardly in cross section from a cirdle to an f' ellipse, said body being downwardly inclined and laterally curved to dispose its elliptical` discharge end in a radial plane of the hopper with the long axis of the ellipse disposed substantially horizontally.

4. ln a blast furnace top, means for admitting and distributing stock comprising a rotatable distributing element, mechanism for advancing said element step by step comprising a reversible hoist operating mechanism, automatic clutch means driven by the 4hoist only throughout one direction of its movement, and motion transmission means'for driving said rotatable distributing element from the clutch means. Y 5. ln a blast furnace top, means for admitting and distributing stock comprising a rotatable distributing element, mechanism for advancing .said element step by step comprisinga reversible hoist operating mechanism, automatic clutch means driven by the hoist only through one direction of its move-ment, and a differential selective drive means for transmitting motion from said clutch to said rotating element.

6. In a blast furnace top, a reversely rotatable top hoist sheave wheel, a clutch element rotatable with the wheel and comprising wedge shaped teeth, rollers mounted on said teeth, a secondary clutch element comprising an annular surface surrounding the toothed element and adapted to be interu locked therewith by the wedging action of said teeth on the rollers as the sheave wheel turns in one direction, transmission means driven by saidsecondary clutch element, a large gas seal bell, a hopper therefor, a secondary gas seal means, a hopper superimposed on the first mentioned hopper, and a rotatable distributor between said hoppers driven step by step by said transmission means. Y

7. In a blast furnace top, the combination with a double skip hoist mechanism comprising a top sheave wheel for each hoist, of an automatic clutch controlled and driven by each wheel as it rotates in one direction only, a countershaft, a driving connection from each clutch to said shaft, a second countersliaft, differential driving connecil i) Asteek distributor interposed between the rg: v 1,465-,37 8

tions between-saidcountershaits,l a clutch hoppersbmeaps opergtled d rjfen mechanism to throw said driving conneceountershaft forgjrotatxig distribqor tions one at a time Vinto operation, a large step by step, andipearisto operatie the bells. l gils sealy bell, a hopper therefor, a 'small' gas' or 1 1111Y @Stimm r. ibrefil V Sigrizwir. .seal bell,i a hopper therefor superimposed' .K VAR `EN LAWSON LUTTZ. on the vfirst mentioned hopper, rotatable v Witness: f

Nonni 

